Intermittently recording device especially in electrical apparatus



Aug. 2, 1932; PUDELKQ 1 8695583 INTERMITTENTLY RECORDING DEVICE ESPECIALLY IN ELECTRICAL APPARATUS Filed p 1924 2 Sheets-Sheet l Inventor.-

R. PUDELKO 1,869,583

INTERMITTENTLY RECORDING DEVICE ESPECIALLY IN ELECTRICAL APPARATUS Aug. 2, 1932.

F l April 1924 2 Sheets-Sheet 2 IN V EN TOR. 7? Q9 A TTO Patented Aug. 2, 1932 UNITED STATES PATENT OFFICE RICCARD IPUDELKO, OF ZUG. SWITZERLAND, ASSIGNOR '10 LANDIS 8c GYR A.-G OF ZUG, SWITZERLAND, A SWISS FIRM INTER MI'ITENTLY RECORDING DEVICE ESPECIALLY IN ELECTRICAL APPARATUS Application filed April 22, 1924, Serial m.

In intermittently recording apparatus especially in electric recording apparatus different types of writing devices are known, writing devices using a nib and ink to record on a strip of paper are generally used. Writing devices of this type have the disadvantage that the paper and the apparatus are frequently soiled. To produce a well drawn distinctive curve the paper strip has to be fed very quickly to prevent blotches of ink at the points of the curve. l/Vritng devices of this kind need frequent cleaning, otherwise they are unreliable.

In comparison with apparatus of this type those other writing devices are more reliable in which a style is used to draw a curve ona strip of paper. Butw-riting devices using a style need-comparatively great force as the style has to be pressed on the paper with considerable force to produce a clear, distinct curve. As in most recording apparatus, especially in electric recording devices, where little power is available to actuate the writing device proper such writing devices could be employed only in special cases.

The object of the invention is to provide an improved apparatus including means for moving the writing implement with refer-' ence to the paper by a force derived from a source independent of the recording apparatus at least during the period of recording, and whereby the disadvantagesv above stated are obviated.

In the accompanying drawings:

Fig. 1 is a diagrammatic perspective of apparatus constructed in accordance with my invention.

Fig. 2 is a similar view of a modification of the same.

. Fig. 3 represents diagrammatically a brake and actuating mechanism for the mechanism of Fig. 1.

Fig. 4 represents diagrammatically an electromagnetic brake and actuating mechanism for the modification shown in Fig. 2.

In the device illustrated in Fig. 1 a cam 1 is driven by a clockwork not' shown in the drawings. The cam 1 cooperates with a lever 2 which is pressed against said cam 1 by a coiled spring 3. A pawl 4 is pivoted to said 708,309, and in Switzerland May 7, 192's.

lever2, and engages a ratchet wheel 5. With the ratchet Wheel 5 a second spring pressed pawl 6 is in engagement, the pawl 6 being pivoted to a lever 7. A coiled spring 8 attached with one end to the frame of the device and with the other to said lever 7 presses the latter against a cam 9 fixed to a shaft 10.

I The shaft 10 is driven by a train of toothed gears by means of an electric motor 12.

Theratchet wheel 5 is provided with a circular row of pins 13 arranged around its axis at equal distances apart. One arm of a bell crank lever 14 projects in the path of said pins 13, the other arm of said lever 14 carries a stud 15 of insulating material. The stud 15 actuates a switch 16 arranged in the circuit of the motor 12. The bell crank lever 14 is supported by an arm 17 of a tubular shaft 18 rotatably mounted in the frame of the apparatus. To a second arm fixed to the shaft 18 one end of a coiled spring 19 is attached, which spring 19 keeps the arm 17 in touch with the lever 14.

The device comprises moreover two grooved disks or pulleys 20, 21 arranged in a common horizontal plane. Around said disks passes a cord 22 one lead of which passes through the hollow shaft 18. In said shaft a piston 24" is slidably mounted. Said piston is fastened to the cord 22 and is provided with an arm 24 projecting through a slot in said shaft 18. On the arm 24 a writing pin or style 23 is mounted and pla s over a paper band 25. Under the paper and a transfer band is arranged which is wound up with said paper band 25 on a roller 26. The roller 26 is driven by a clock-work for instance by the spring barrel of the clockwork, (not shown).

.On the shaft of the grooved pulley 21 a toothed gear 27 is fastened which is in mesh with a spur wheel 28 and a pinion 29. The spur wheel 28 is in gear with a toothed wheel 30, fixed to shaft 10. The toothed rim of the wheel 30 is provided with a gap. To the shaft of pinion 29 a worm wheel 32 is connected by means of a friction clutch actuated bya coiled spring 31. A worm 33-driven by the measuring or recording apparatus engages said worm wheel 32.

in the position of the parts shown in the drawings the style .23 is in a raised position and moves above the band 25 if the disk 21 of the recording device is driven in the direction shown by the arrow 34. As soon as the period of I cording starts the lever 2 is moved y the cam 1,-so that the ratchet wheel 5 is i turned byl the pawl 4 so far that the pin 13 releases t e lever 14. The spring 19 then instantly turns the shaft 18 far enough to press the style 23 on to the paper band 25 and thereupon the stud actuates the switch 16. The circuit of the motor 12 is thus closed and said motor starts. Hence the shaft 10 is set in rotation in the direction shown by the arrow 35. The gear 30 rotates'with the shaft 10 and the toothed portion of gear 30 is brought in engagement with gear 28. The latter rotates and turns the grooved pulleys 20, 21 in a direction opposite to that in which they are driven by the driving shaft of the recording device. The friction clutch acting in common with the gear 32 prevents the return movement of the driving system of the apparatus. The shaft of pinion 29 rotates freely in the gear 32. By gliding over the band 25, which is preferably of translucent paper, the style 23 draws a line on the band by means of the transfer paper placed underneath said band. As soon as the style 23 reaches its initial position it is arrested by a suitable device not shown in the drawings. Said stop may consist in a spring clutch 2'? co-operating with the grooved pulley 21 and connecting said pulley to its shaft.

The cam 9 driven by the motor 12 lifts the lever 7, and the spring 8 attached thereto is tensioned thereby. After the shaft 10 has completed about one turn lever 7 drops from the cam 9 and shifts the ratchet wheel 5 by means of the pawl 6. A pin 13 now returns lever 14 to its initial position, whereby the switch 16 is actuated and the circuit through the motor is broken. The motor 12 is thus stopped and arm 17 is pressed downwards so that the style 23 is lifted from the band 25 and the driving system of the apparatus thereupon actuates the style 23. A brake may be provided to retain the motor in its disengaged position, said brake may be actuated by lever 14 when the latter returns to its initial position.

In the modification shown in Fig. 2, 18

denotes a tubular shaft rotatably mounted in bearings of the frame of the apparatus. On the shaft 18 an arm 51 is fixed on which one end of a coiled spring 19' is attached the other end of said spring being connected to the frame of the apparatus. In the tube 18 is a carrier 24a which has an arm 24 that opcrates-in a slot of the tube and is provided with a style 23'.

Said carrier 24a is connected to a cord 22 running over grooved pulleys 20- and 21 and one lead of said cord running through wh n band 25 of translucent material, beneath which a transfer paper band, for instance a carbon band is placed. Both bands are wound on a roller 26 which roller is driven by a clockwork not shown in the drawings. The said clockwork drives two cams 36 and 37 for respectively operating the levers 38 and 39. Lever 39 is pivoted at 40 and lever 38 is provided with a stud 41 of insulating material. contact arms ofa switch 42. A second switch 43 is actuated by a pin 44 projecting from a toothed gear 45. The gear 45 is in mesh with a spur wheel fixed to shaft 48. The shaft 48 is driven byan electric motor 12 by means of a set of gears 47.

On shaft 48 a cam 49 is fixed. A toothed gear 50 is also fixed on said shaft and is provided with notch at its circumference. The cam 49 is engaged by a roller 51a which is mounted on a stud 515 which the arm 51 is provided. The spring 19 exerts its tension to keep the roller 51a engaged with the periphery of the cam 49. A pinion 52 is en gaged with the gear 50 and with a crown wheel 53. Said crown wheel is fastened to the shaft 53a of the pulley 21. A second crown wheel 54 is connected to said shaft by means of a friction clutch. The crown wheel 54 is driven by a shaft 55 and a pinion from the driving system of the recording apparatus.

The switches 42, 43 form a part of the circuit of the motor 12.

During the period of recording the driving system of the recording apparatus operates the style 23. The motor. 12 and shaft 48 are at rest. The mutilated portion of the gear 50 is opposite the gear 52 and the roller 51a of the arm 51 is in a recessof the cam 49. The levers 38 and 39 rest on the cams 36 and 37. The lower contact of the switch 42 and the upper contact of switch 43 are open and the circuit of the motor 12 is broken.

At the end of the recording period the lever '38 is dropped by the cam 36, the stud 41 "sw ngs upward, the lower contact ofswitch 42 1S closed and the upper contact is broken.

The circuit of the motor is closed over the lower contact arms of the switches 42, 43. The motor 12' turns the shaft 48 in the direction of the arrow 56. The roller of arm 51 runs on an elevated portion of cam 49, and the style 23 is pressed aganst the band 25'.

The gear 50 is now brought in mesh with the gear 52 and returns the'style 23 to the zero position, the gear 54 sliding on the shaft of the pulley 21'. The style 23 draws a line on the paper band 25'.-

After the shaft 48 has 'made approximately a full turn the notch in the gear 50 is brought opposite the gear 52 and the style 23 is disengaged from the shaft 48. The roller on arm 51 now enters the recess of cam 49 where- The stud41 actuates the springy by the style 23' is raised from the paper band 25. The pin .44 having made half a turn together with the gear 45 breaks the lower contact of, switch 43, the circuit of the motor 6 12' is now open and the motor stops.

To arrest the motor in its positlon, disengaged from the shaft 48 and from the style 23 a brake 50 is provided, which may be an electromagnetic brake connected to the cir- D cuit of the electromotor. The style 23 is again moved by the driving system ofthe recording apparatus until at the end of this.

period the recording lever 39 falls from the cam 37. The stud 41 swings downwards, the upper contact of switch 42 is closed and the lower contact of said switch is opened. The circuit of the electromotor 12 is closed and the style'23 is set to draw a curve on the paper 25.

In the last described construction it is not necessary that the clockwork controlling the electromotor forms part. of the recording apparatus, the clockwork may be one used for any other purpose, but must be provided with 25 the cams 36, 37 the levers 38, 39 and the switch 42.

The motor in both constructions described may be used to wind-up the spring or to lift the weight used to drive the clockwork.

According to the present invention the power of a periodically recording device, that is the power by which the style according to the value to be recorded is moved from a zero position, is relieved of the work of writing. 35 The invention is especially of advantage in a paratus in which only little power is availa le to actuate the writing device.

What I wish to secure by U. S. Letters Patent is: a

1. In intermittently recording devices including an element to draw curves on a strip of paper, means to move said writing element in a non-operative position across said paper strip and means to move said writing imple- 45 ment in its operative or writing position over the paper strip, the last named means being actuated by an auxiliary force independent of the power derived from the recording appa ratus, the writing implement being slidably arranged in a rotary guide and rotatively coupled therewith, said auxiliary force also bringing said writing implement in and out of its writing position by rotating said guide.

2. In intermittently recording devices including an element to draw curves on a strip of paper, means to move said writing element in a non-operative position across said paper strip and means to move said element in its operative or writing position over the paper 0 strip the last named means including an auxiliary force independent of the power derived from the recording apparatus, the Writing. element being connected to an arm of a slide arranged within a tubular shaft, said arm projecting through a longitudinal slot of said shaft, and an auxiliary force which is independent of the power of the recording apparatus, to turn said tubular shaft.

3. In intermittently recording devices including an element to draw curves on a strip of paper, said implement beng fixed to an arm of a slide projecting through a slot of a tubular shaft, said slide being connected to a cord running over two grooved pulleys, means including a friction clutch to drive said pulleys by the driving system of the recording apparatus and to thereby move the writing element out of its initial position, means to keep the. writing device out of contact with the paper strip during said movement and means including an auxiliary power independent of the recording apparatus to place the writing element in contact with the paper strip, and to return the writing element in its operative position to its initial position.

4. An intermittently recording device including a uniting element to draw curves on a strip of paper, a slide on which said element is mounted, a rotary guide for the slide, a cord to which the slideis fastened, said cord running over two pulleys, a motor independent of the recording apparatus arranged to drive said cord by means including a mutilated gear, a lever arrangement actuated by said auxiliary motor and to turn said rotary guide, a recording apparatus driving shaft and a gearing connecting said shaft with said cord, said gearing including'a friction clutch and being adapted to move the writing element from its zero point, and means to retain the writing element lifted from paper strip while it is moved by therecording' device.

5. An intermittently recording device including an element to draw curves on a strip of paper, a slide on which said element is mounted, a rotary guide for the slide, a cord to which the slide is fastened, said cord running over two pulleys, a motor independent of the recording apparatus arranged to drive said cord by means including a mutilated gear, a cam actuated by said auxiliary motor, means to turn saidrotary guide and comprisin g a ratchet wheel, two levers, each carrying a pawl engaging said ratchet wheel, and one of wh ch is operated by said cam, a clockwork actuated cam operating the other lever, said cam governing the functions of the recording apparatus, a recording apparatus driving shaft, and a gearing .connecting said shaft with said cord, said gearing including a friction clutch and being arranged to move the writing element periodically out of its zero position. 1

6. An energy metering and indicating mechanism including in combination a meter, a recording device adapted to make a record on a record sheet, means for movingthe recording device proportionately to the energyconsumed while it is out of engage- 4 nscaeee initially move the recording device into engagement with the record sheet and reversely move said device in contact'with the record sheet to record the energy consumption during said time period.

7. An energy metering and indicating mechanism including in combination a meter, a recording device moving during a predetermined time period in proportional relation to the energy consumed, atime measkuring device and means whereby the time measuring device moves the recording device into and out of operative relation with a record receiving surface and a power device periodically engageable with the recording device for linearly moving the recording de vice in contact with a record sheet.

8. An energy metering and indicating mechanism including in combination a meter,

a recording device positioned, whilefrec,

from the record-receiving surface, by the meter to indicate the energy consumption during a predetermined time interval, power means for causing the positioned recording device to make a single linear record of the entire energy consumption for said period, and a clock-mechanism controlling the time of operation of said power means.

9. An energy metering and indicating mechanism including in combination a movable record sheet, a marking member, a meter, means for moving the marking member from an initial position proportionately to the movement of the meter during a predetermined time interval while tree from the record sheet, and devices for moving the marking member into engagement with and back to initial position in engagement with. the record sheet.

10. An energy metering and indicating mechanism including in combination'a movable record sheet, a marking member, a meter, means for moving the marking member from an initial position proportionately to the movement of the meter during a predetermined time interval, devices for moving the marking member into engagement with and back to initial position in engagement with the record sheet, and a time-controlled switch for one of said devices.

11. An energy metering and indicating mechanism including in combination a movable record sheet, a marking member, a-

on the marking member at the close of each predetermined time period.

12. An energy metering and indicating mechanism including in combination a movable record sheet, a marking member, a meter means for moving the marking member proportionately to the movement of the meter during a predetermined time interval, and means including a mutilated gear normally free of the metering train for moving the marker reversely alongjthe record'sheet at the end of the predetermined time interval.

mechanism including in combination a movable record sheet, a marking member, a meter means for moving'the marking-member proportionately to the movement of the meter during a predetermined time interval, and means including a motor and a mutilated gear normally free of the metering mechanism for moving the marker reversely along the record sheet at the end of the predetermined time interval. v

v 14. An energy metering and indicating mechanism including in combination a movable record sheet, a marking member, ameter means including a slip drive for moving the marking member proportionately to the movement of the meter during a predetermined time interval, and means. including a motor and a mutilated gear normally disconnected from the meter mechanism for moving the marker reversely along the record sheet 'at the end 0f the predetermined ing mechanism including in combination a movable record sheet, a marking member, a meter, means for continuously moving the marking member from 1 an initial position proportionately to the movement of the meter during a predetermined time interval while free from the record sheet, devices for moving the marking member into engagement with and back to initial position in engagement with the'record sheet and a time controlled device for moving the marking member into engagement with the record sheet, v 16. 'An energy metering and indicating mechanism including in combinationa movable record sheet, a marking member, a meter, means for moving the marking member from an initial position proportionately to the movement of the meter during a predetermined time interval while free from the record sheet, devices including a motor for moving the marking member into engagement with and back to initial position in engagement with the record sheet and a single time controlled device for starting the mo-' 13. An energy metering and indicating 17. A metering and indicating mechanism including a recorder, means periodically to move the recorder into contact with a record sheet, and means brought into operation after said recorder has contacted with the record sheet to return said recorder to zero while in contact with said sheet.

18. An integrating maximum demand indicating and recording instrument including in combination a recording device, a rot-atable meter element continuously connected to an indicator to move the recording device across and out of contact with the chart proportionally with the quantity measured, separate driving means engageable with the recording device to reversely move it against the continued action of-the meter means, time-controlled means for intermittently energizing the driving means, and means for moving the recording device relatively to the chart.

In witness whereof I afiix my signature.

RICCARD PUDELKO. 

